test/api/test-ot-face.c - third_party/harfbuzz - Git at Google

 /*
  * Copyright © 2011  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
  * all copies of this software.
  *
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  * DAMAGE.
  *
  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  *
  * Google Author(s): Behdad Esfahbod
  */

 #ifndef TEST_OT_FACE_NO_MAIN
 #include "hb-test.h"
 #endif
 #include <hb-aat.h>
 #include <hb-ot.h>

 /* Unit tests for hb-ot-*.h */

 /* Return some dummy result so that compiler won't just optimize things */
 static long long
 test_font (hb_font_t *font, hb_codepoint_t cp)
 {
   long long result = 0;

   hb_face_t *face = hb_font_get_face (font);
   hb_set_t *set;
   hb_codepoint_t g = 0;
   hb_position_t x = 0, y = 0;
   char buf[5] = {0};
   unsigned int len = 0;
   hb_glyph_extents_t extents = {0};
   hb_ot_font_set_funcs (font);

   set = hb_set_create ();
   hb_face_collect_unicodes (face, set);
   hb_face_collect_variation_selectors (face, set);
   hb_face_collect_variation_unicodes (face, cp, set);

   hb_font_get_nominal_glyph (font, cp, &g);
   hb_font_get_variation_glyph (font, cp, cp, &g);
   hb_font_get_glyph_h_advance (font, cp);
   hb_font_get_glyph_v_advance (font, cp);
   hb_font_get_glyph_h_origin (font, cp, &x, &y);
   hb_font_get_glyph_v_origin (font, cp, &x, &y);
   hb_font_get_glyph_extents (font, cp, &extents);
   hb_font_get_glyph_contour_point (font, cp, 0, &x, &y);
   hb_font_get_glyph_name (font, cp, buf, sizeof (buf));
   hb_font_get_glyph_from_name (font, buf, strlen (buf), &g);

   hb_ot_color_has_palettes (face);
   hb_ot_color_palette_get_count (face);
   hb_ot_color_palette_get_name_id (face, cp);
   hb_ot_color_palette_color_get_name_id (face, cp);
   hb_ot_color_palette_get_flags (face, cp);
   hb_ot_color_palette_get_colors (face, cp, 0, NULL, NULL);
   hb_ot_color_has_layers (face);
   hb_ot_color_glyph_get_layers (face, cp, 0, NULL, NULL);
   hb_ot_color_has_svg (face);
   hb_blob_destroy (hb_ot_color_glyph_reference_svg (face, cp));
   hb_ot_color_has_png (face);
   hb_blob_destroy (hb_ot_color_glyph_reference_png (font, cp));

   {
     hb_aat_layout_feature_type_t feature = HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC;
     unsigned count = 1;
     hb_aat_layout_get_feature_types (face, 0, &count, &feature);
     hb_aat_layout_feature_type_get_name_id (face, HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE);
     hb_aat_layout_feature_selector_info_t setting = {0};
     unsigned default_index;
     count = 1;
     hb_aat_layout_feature_type_get_selector_infos (face, HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE, 0, &count, &setting, &default_index);
     result += count + feature + setting.disable + setting.disable + setting.name_id + setting.reserved + default_index;
   }

   hb_set_t *lookup_indexes = hb_set_create ();
   hb_set_add (lookup_indexes, 0);

   hb_map_t *lookup_mapping = hb_map_create ();
   hb_map_set (lookup_mapping, 0, 0);
   hb_set_t *feature_indices = hb_set_create ();
   hb_set_destroy (lookup_indexes);
   hb_set_destroy (feature_indices);
   hb_map_destroy (lookup_mapping);

   hb_ot_layout_get_baseline (font, HB_OT_LAYOUT_BASELINE_TAG_HANGING, HB_DIRECTION_RTL, HB_SCRIPT_HANGUL, HB_TAG_NONE, NULL);

   hb_ot_layout_has_glyph_classes (face);
   hb_ot_layout_has_substitution (face);
   hb_ot_layout_has_positioning (face);

   hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR, cp, 0, NULL, NULL);

   {
     unsigned temp = 0, temp2 = 0;
     hb_ot_name_id_t name = HB_OT_NAME_ID_FULL_NAME;
     hb_ot_layout_get_size_params (face, &temp, &temp, &name, &temp, &temp);
     hb_tag_t cv01 = HB_TAG ('c','v','0','1');
     unsigned feature_index = 0;
     hb_ot_layout_language_find_feature (face, HB_OT_TAG_GSUB, 0,
 					HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX,
 					cv01, &feature_index);
     hb_ot_layout_feature_get_name_ids (face, HB_OT_TAG_GSUB, feature_index,
 				       &name, &name, &name, &temp, &name);
     temp = 1;
     hb_ot_layout_feature_get_characters (face, HB_OT_TAG_GSUB, feature_index, 0, &temp, &g);
     temp = 1;
     hb_ot_layout_language_get_feature_indexes (face, HB_OT_TAG_GSUB, 0, 0, 0, &temp, &temp2);

     result += temp + name + feature_index + temp2;
   }

   hb_ot_math_has_data (face);
   for (unsigned constant = HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN; constant <= HB_OT_MATH_CONSTANT_RADICAL_DEGREE_BOTTOM_RAISE_PERCENT; constant++) {
     hb_ot_math_get_constant (font, (hb_ot_math_constant_t)constant);
   }

   hb_ot_math_get_glyph_italics_correction (font, cp);
   hb_ot_math_get_glyph_top_accent_attachment (font, cp);
   hb_ot_math_is_glyph_extended_shape (face, cp);

   {
     hb_ot_math_get_glyph_kerning (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0);
     hb_ot_math_get_glyph_kernings (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0, NULL, NULL);
     hb_ot_math_kern_entry_t entries[5];
     unsigned count = sizeof (entries) / sizeof (entries[0]);
     hb_ot_math_get_glyph_kernings (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0, &count, entries);
   }

   {
     hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_LTR, 0, NULL, NULL);
     hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_TTB, 0, NULL, NULL);
     hb_ot_math_glyph_variant_t entries[5];
     unsigned count = sizeof (entries) / sizeof (entries[0]);
     hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_LTR, 0, &count, entries);
   }

   {
     hb_ot_math_get_min_connector_overlap (font, HB_DIRECTION_LTR);
     hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_LTR, 0, NULL, NULL, NULL);
     hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_TTB, 0, NULL, NULL, NULL);
     hb_ot_math_glyph_part_t entries[5];
     unsigned count = sizeof (entries) / sizeof (entries[0]);
     hb_position_t corr;
     hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_LTR, 0, &count, entries, &corr);
   }

   hb_ot_meta_get_entry_tags (face, 0, NULL, NULL);
   hb_blob_destroy (hb_ot_meta_reference_entry (face, HB_OT_META_TAG_DESIGN_LANGUAGES));

   hb_ot_metrics_get_position (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER, NULL);
   hb_ot_metrics_get_variation (font, HB_OT_METRICS_TAG_UNDERLINE_OFFSET);
   hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_STRIKEOUT_OFFSET);
   hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET);

   len = sizeof (buf);
   hb_ot_name_list_names (face, NULL);
   hb_ot_name_get_utf8 (face, cp, NULL, &len, buf);
   hb_ot_name_get_utf16 (face, cp, NULL, NULL, NULL);
   hb_ot_name_get_utf32 (face, cp, NULL, NULL, NULL);

 #if 0
   hb_style_get_value (font, HB_STYLE_TAG_ITALIC);
   hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE);
   hb_style_get_value (font, HB_STYLE_TAG_SLANT);
   hb_style_get_value (font, HB_STYLE_TAG_WIDTH);
   hb_style_get_value (font, HB_STYLE_TAG_WEIGHT);
 #endif

   hb_ot_var_get_axis_count (face);
   hb_ot_var_get_axis_infos (face, 0, NULL, NULL);
   hb_ot_var_normalize_variations (face, NULL, 0, NULL, 0);
   hb_ot_var_normalize_coords (face, 0, NULL, NULL);

   hb_draw_funcs_t *funcs = hb_draw_funcs_create ();
   hb_font_draw_glyph (font, cp, funcs, NULL);
   hb_draw_funcs_destroy (funcs);

   hb_set_destroy (set);

   return result + g + x + y + buf[0] + buf[1] + buf[2] + buf[3] + buf[4] + len +
 	 extents.height + extents.width + extents.x_bearing + extents.y_bearing;
 }

 #ifndef TEST_OT_FACE_NO_MAIN
 static void
 test_ot_face_empty (void)
 {
   test_font (hb_font_get_empty (), 0);
 }

 static void
 test_ot_var_axis_on_zero_named_instance (void)
 {
   hb_face_t *face = hb_test_open_font_file ("fonts/Zycon.ttf");
   g_assert (hb_ot_var_get_axis_count (face));
   hb_face_destroy (face);
 }

 int
 main (int argc, char **argv)
 {
   hb_test_init (&argc, &argv);

   hb_test_add (test_ot_face_empty);
   hb_test_add (test_ot_var_axis_on_zero_named_instance);

   return hb_test_run();
 }
 #endif
	/*
	* Copyright © 2011 Google, Inc.
	*
	* This is part of HarfBuzz, a text shaping library.
	*
	* Permission is hereby granted, without written agreement and without
	* license or royalty fees, to use, copy, modify, and distribute this
	* software and its documentation for any purpose, provided that the
	* above copyright notice and the following two paragraphs appear in
	* all copies of this software.
	*
	* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
	* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
	* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
	* DAMAGE.
	*
	* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
	* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
	* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
	* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
	* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
	*
	* Google Author(s): Behdad Esfahbod
	*/

	#ifndef TEST_OT_FACE_NO_MAIN
	#include "hb-test.h"
	#endif
	#include <hb-aat.h>
	#include <hb-ot.h>

	/* Unit tests for hb-ot-.h /

	/* Return some dummy result so that compiler won't just optimize things */
	static long long
	test_font (hb_font_t *font, hb_codepoint_t cp)
	{
	long long result = 0;

	hb_face_t *face = hb_font_get_face (font);
	hb_set_t *set;
	hb_codepoint_t g = 0;
	hb_position_t x = 0, y = 0;
	char buf[5] = {0};
	unsigned int len = 0;
	hb_glyph_extents_t extents = {0};
	hb_ot_font_set_funcs (font);

	set = hb_set_create ();
	hb_face_collect_unicodes (face, set);
	hb_face_collect_variation_selectors (face, set);
	hb_face_collect_variation_unicodes (face, cp, set);

	hb_font_get_nominal_glyph (font, cp, &g);
	hb_font_get_variation_glyph (font, cp, cp, &g);
	hb_font_get_glyph_h_advance (font, cp);
	hb_font_get_glyph_v_advance (font, cp);
	hb_font_get_glyph_h_origin (font, cp, &x, &y);
	hb_font_get_glyph_v_origin (font, cp, &x, &y);
	hb_font_get_glyph_extents (font, cp, &extents);
	hb_font_get_glyph_contour_point (font, cp, 0, &x, &y);
	hb_font_get_glyph_name (font, cp, buf, sizeof (buf));
	hb_font_get_glyph_from_name (font, buf, strlen (buf), &g);

	hb_ot_color_has_palettes (face);
	hb_ot_color_palette_get_count (face);
	hb_ot_color_palette_get_name_id (face, cp);
	hb_ot_color_palette_color_get_name_id (face, cp);
	hb_ot_color_palette_get_flags (face, cp);
	hb_ot_color_palette_get_colors (face, cp, 0, NULL, NULL);
	hb_ot_color_has_layers (face);
	hb_ot_color_glyph_get_layers (face, cp, 0, NULL, NULL);
	hb_ot_color_has_svg (face);
	hb_blob_destroy (hb_ot_color_glyph_reference_svg (face, cp));
	hb_ot_color_has_png (face);
	hb_blob_destroy (hb_ot_color_glyph_reference_png (font, cp));

	{
	hb_aat_layout_feature_type_t feature = HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC;
	unsigned count = 1;
	hb_aat_layout_get_feature_types (face, 0, &count, &feature);
	hb_aat_layout_feature_type_get_name_id (face, HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE);
	hb_aat_layout_feature_selector_info_t setting = {0};
	unsigned default_index;
	count = 1;
	hb_aat_layout_feature_type_get_selector_infos (face, HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE, 0, &count, &setting, &default_index);
	result += count + feature + setting.disable + setting.disable + setting.name_id + setting.reserved + default_index;
	}

	hb_set_t *lookup_indexes = hb_set_create ();
	hb_set_add (lookup_indexes, 0);

	hb_map_t *lookup_mapping = hb_map_create ();
	hb_map_set (lookup_mapping, 0, 0);
	hb_set_t *feature_indices = hb_set_create ();
	hb_set_destroy (lookup_indexes);
	hb_set_destroy (feature_indices);
	hb_map_destroy (lookup_mapping);

	hb_ot_layout_get_baseline (font, HB_OT_LAYOUT_BASELINE_TAG_HANGING, HB_DIRECTION_RTL, HB_SCRIPT_HANGUL, HB_TAG_NONE, NULL);

	hb_ot_layout_has_glyph_classes (face);
	hb_ot_layout_has_substitution (face);
	hb_ot_layout_has_positioning (face);

	hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR, cp, 0, NULL, NULL);

	{
	unsigned temp = 0, temp2 = 0;
	hb_ot_name_id_t name = HB_OT_NAME_ID_FULL_NAME;
	hb_ot_layout_get_size_params (face, &temp, &temp, &name, &temp, &temp);
	hb_tag_t cv01 = HB_TAG ('c','v','0','1');
	unsigned feature_index = 0;
	hb_ot_layout_language_find_feature (face, HB_OT_TAG_GSUB, 0,
	HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX,
	cv01, &feature_index);
	hb_ot_layout_feature_get_name_ids (face, HB_OT_TAG_GSUB, feature_index,
	&name, &name, &name, &temp, &name);
	temp = 1;
	hb_ot_layout_feature_get_characters (face, HB_OT_TAG_GSUB, feature_index, 0, &temp, &g);
	temp = 1;
	hb_ot_layout_language_get_feature_indexes (face, HB_OT_TAG_GSUB, 0, 0, 0, &temp, &temp2);

	result += temp + name + feature_index + temp2;
	}

	hb_ot_math_has_data (face);
	for (unsigned constant = HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN; constant <= HB_OT_MATH_CONSTANT_RADICAL_DEGREE_BOTTOM_RAISE_PERCENT; constant++) {
	hb_ot_math_get_constant (font, (hb_ot_math_constant_t)constant);
	}

	hb_ot_math_get_glyph_italics_correction (font, cp);
	hb_ot_math_get_glyph_top_accent_attachment (font, cp);
	hb_ot_math_is_glyph_extended_shape (face, cp);

	{
	hb_ot_math_get_glyph_kerning (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0);
	hb_ot_math_get_glyph_kernings (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0, NULL, NULL);
	hb_ot_math_kern_entry_t entries[5];
	unsigned count = sizeof (entries) / sizeof (entries[0]);
	hb_ot_math_get_glyph_kernings (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0, &count, entries);
	}

	{
	hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_LTR, 0, NULL, NULL);
	hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_TTB, 0, NULL, NULL);
	hb_ot_math_glyph_variant_t entries[5];
	unsigned count = sizeof (entries) / sizeof (entries[0]);
	hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_LTR, 0, &count, entries);
	}

	{
	hb_ot_math_get_min_connector_overlap (font, HB_DIRECTION_LTR);
	hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_LTR, 0, NULL, NULL, NULL);
	hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_TTB, 0, NULL, NULL, NULL);
	hb_ot_math_glyph_part_t entries[5];
	unsigned count = sizeof (entries) / sizeof (entries[0]);
	hb_position_t corr;
	hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_LTR, 0, &count, entries, &corr);
	}

	hb_ot_meta_get_entry_tags (face, 0, NULL, NULL);
	hb_blob_destroy (hb_ot_meta_reference_entry (face, HB_OT_META_TAG_DESIGN_LANGUAGES));

	hb_ot_metrics_get_position (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER, NULL);
	hb_ot_metrics_get_variation (font, HB_OT_METRICS_TAG_UNDERLINE_OFFSET);
	hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_STRIKEOUT_OFFSET);
	hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET);

	len = sizeof (buf);
	hb_ot_name_list_names (face, NULL);
	hb_ot_name_get_utf8 (face, cp, NULL, &len, buf);
	hb_ot_name_get_utf16 (face, cp, NULL, NULL, NULL);
	hb_ot_name_get_utf32 (face, cp, NULL, NULL, NULL);

	#if 0
	hb_style_get_value (font, HB_STYLE_TAG_ITALIC);
	hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE);
	hb_style_get_value (font, HB_STYLE_TAG_SLANT);
	hb_style_get_value (font, HB_STYLE_TAG_WIDTH);
	hb_style_get_value (font, HB_STYLE_TAG_WEIGHT);
	#endif

	hb_ot_var_get_axis_count (face);
	hb_ot_var_get_axis_infos (face, 0, NULL, NULL);
	hb_ot_var_normalize_variations (face, NULL, 0, NULL, 0);
	hb_ot_var_normalize_coords (face, 0, NULL, NULL);

	hb_draw_funcs_t *funcs = hb_draw_funcs_create ();
	hb_font_draw_glyph (font, cp, funcs, NULL);
	hb_draw_funcs_destroy (funcs);

	hb_set_destroy (set);

	return result + g + x + y + buf[0] + buf[1] + buf[2] + buf[3] + buf[4] + len +
	extents.height + extents.width + extents.x_bearing + extents.y_bearing;
	}

	#ifndef TEST_OT_FACE_NO_MAIN
	static void
	test_ot_face_empty (void)
	{
	test_font (hb_font_get_empty (), 0);
	}

	static void
	test_ot_var_axis_on_zero_named_instance (void)
	{
	hb_face_t *face = hb_test_open_font_file ("fonts/Zycon.ttf");
	g_assert (hb_ot_var_get_axis_count (face));
	hb_face_destroy (face);
	}

	int
	main (int argc, char **argv)
	{
	hb_test_init (&argc, &argv);

	hb_test_add (test_ot_face_empty);
	hb_test_add (test_ot_var_axis_on_zero_named_instance);

	return hb_test_run();
	}
	#endif